<?php
$a=array(111,"222",'name'=>'张三','age'=>18,1000=>333,"444",);
for ($i=0;$i<6;++$i){
    echo $i,'.',$a[$i],"\n";
}
echo "显示数组各个元素key及value的值\n";
foreach ($a as $k=>$v){
    echo $k,':',$v,"\n";
}
echo "仅仅显示value的值：\n";
foreach ($a as $value){
    echo $value,"\n";
}